Physocarpus opulifolius ‘Seward’ Summer Wine

('Summer Wine', Eastern Ninebark)


Hardiness Zones:

 3a  3b  4a  4b  5a  5b  6a  6b  7a  7b  8a  8b

Quick Overview:

‘Summer Wine’ is noted for its deeply cut, wine-red foliage and its dense, free-branching, mounded growth habit. It is the result of a cross between P. opulifolius ?Nanus? (seed parent) and P. opulifolius ?Diabolo? (pollen parent). It typically grows 4-6? tall and as wide, but, unlike the species, is noted for retaining compact form. Small pinkish-white, five-petaled flowers in dense, flat, rounded, 1-2? diameter, spiraea-like clusters (corymbs) appear in late spring. Ovate to rounded, usually 3-5 lobed leaves (to 4? long) are wine red. Foliage color tends to green up in hot summer climates as the summer progresses. Ninebark is named for its exfoliating bark (on mature branches) which peels in strips to reveal several layers of reddish to light brown inner bark. Bark provides winter interest but is usually hidden by the foliage during the growing season.

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Easily grown in average, slightly acidic, dry to medium moisture, well-drained soil in full sun to part shade. Best in full sun in the northern part or its growing range, but appreciates some afternoon shade. Tolerates a wide range of soil conditions. Prune as needed immediately after bloom and no later than mid-August. Plants may be cut close to the ground in winter to rejuvenate.

Additional information

Common Name

'Summer Wine', Eastern Ninebark

Botanical Name

Physocarpus opulifolius 'Seward' Summer Wine


7 gallon

Evergreen or Deciduous


Hardiness Zone

3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b

Growth Rate


Light Requirements

Part-shade, Part-sun, Sun


5 ft.


5 ft.

Soil Condition

Dry Soils

Water Needs


Blooming Period


Flower Color




Foliage Color


Deer Resistant


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